@keyframes formRight {
  form {
    opacity: 0;
    transform: translate3d(100px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes _formRight {
  form {
    opacity: 0 !important;
    transform: translate3d(40px, 0, 0) !important;
  }
  to {
    opacity: 1 !important;
    transform: translate3d(0, 0, 0) !important;
  }
}
@keyframes fromBottom {
  form {
    opacity: 0;
    transform: translate3d(0, 100px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}
@keyframes fromLeft {
  form {
    opacity: 0;
    transform: translate3d(-100px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}
@keyframes _fromLeft {
  form {
    opacity: 0 !important;
    transform: translate3d(-40px, 0, 0) !important;
  }
  to {
    opacity: 1 !important;
    transform: translate3d(0, 0, 0) !important;
  }
}
@keyframes leftToRight {
  0% {
    transform: translate3d(-100px, 0, 0);
  }
  50% {
    transform: translate3d(100px, 0, 0);
  }
  100% {
    transform: translate3d(-100px, 0, 0);
  }
}

@COLOR: #ef8c81;
@BORDER: #40c2f8;
.indexContainer {
  height: 100%;
  // width: 1150px;
  margin: 0 auto;
  position: relative;
  display: flex;
  padding-top: 10px;
  flex-direction: column;
  .operationContainer {
    position: absolute;
    top: -20px;
    width: 240px;
    left: -60px;
    z-index: 2;
    height: 300px;
    .api {
      width: 240px;
      cursor: pointer;
      text-align: center;
      .icon {
        color: white;
        text-align: center;
        transform: translate3d(-100px, 0, 0);
        animation: leftToRight 8s infinite;
        i {
          font-size: 22px;
        }
      }
    }
    ul {
      animation: formRight 0.6s;
      will-change: opacity, transform;
      opacity: 0;
      transform: translate3d(60px, 0, 0);
      animation-fill-mode: forwards;
      li {
        line-height: 30px;
        padding: 62px;
        color: @BORDER;
        will-change: opacity, transform;
        opacity: 0;
        cursor: pointer;
        animation: fromLeft 0.6s;
        transform: translate3d(-40px, 0, 0);
        animation-fill-mode: forwards;
        span {
          margin-left: 20px;
          font-size: 13px;
          transition: all 0.4s;
        }
      }
      li:hover span {
        color: rgba(255, 255, 255, 0.5);
      }
    }
  }
  .footerInfo {
    position: absolute;
    bottom: 160px;
    white-space: nowrap;
    left: 50%;
    transform: translateX(-50%);
    color: white;
  }
  .leftContainer {
    float: left;
    width: auto;
    position: relative;
    .extrc {
      position: absolute;
      white-space: nowrap;
      top: 300px;
      color: white;
      opacity: 0;
      font-size: 16px;
      transform: translate3d(100px, 0, 0);
      animation: formRight 0.6s;
      animation-fill-mode: forwards;
    }
    .extrc2 {
      position: absolute;
      white-space: nowrap;
      top: 350px;
      left: 100px;
      color: white;
      opacity: 0;
      font-size: 16px;
      transform: translate3d(0, 100px, 0);
      animation: fromBottom 0.6s;
      animation-fill-mode: forwards;
    }
    .welcome {
      position: absolute;
      top: 250px;
      left: 0;
      width: auto;
      white-space: nowrap;
      font-size: 14px;
      text-transform: uppercase;
      color: rgba(255, 255, 255, 0.5);
      letter-spacing: 0.15em;
      display: block;
      margin-bottom: 10px;
      opacity: 0;
      transform: translate3d(-100px, 0, 0);
      animation: formRight 0.6s;
      animation-fill-mode: forwards;
    }
  }
}
